Adjustments you should make:
1. @0:33 - Blocked (EX)TP is +10 so you have frame advantage. Good follow up is 3,3 or 1,1 if you anticipate a jump.
2. @0.40 - Blocked F+3 is o on block. It also pushes your opponent back so its very safe. When it's blocked you can njp if you anticipate a jump and on hit you should 3,3xxTD.
3. @4:02 - That was a perfect AA spear. Try to do that & not random spears.
4. @4:14 - After an AA spear you cannot use that BnB because the gravity changes.
5. @5:13 - Be aware of your spacing on screen, and know your BnB. It seemed like you purposely dropped that combo because you didn't know a corner BnB
6. Use more anti-air. Scorpion has really great anti-air options that all lead to vortex setups.
7. Your vortex could use some work.
8. Better footsies and more use of D+4. Also, know when you can poke and when you cant.
Vs Sub-Zero:
The best way to beat Subz is to turtle, stay defensive, and zone with good spacing. He can't do Scorpion any harm if you stay at full screen. He has a few options:
1. Ice Ball (does no chip and can be punished by (EX)spear From full screen)
2. Slide (can easily be reacted to from full screen or jump distance)
3. Dash in with Ice Clones (Keep hellfire under his butt to bait jumps and AA spear him)
4. Be careful to not get liberal with hellfire he can (EX) slide through it, but ironically it puts you back into your comfort zone.
Scorpion can counter all his tools and force him to make mistakes and to become the aggressor.
Hope I helped dude